Improvement in take-up mechanisms for looms



H. CARSTAEDT. .Take-Up Mechanism for Looms.

KNWI-681,228. lPatentedSept.v2`8,l87i5.

Inventum c f Witnesses. t I /f @NM MWA/5% clination.

UNITED' 4Pnrnlwr OFFICE `nudo cnnsrnnn'r, or NEW YORK, N. Y.

lwlPvRovlzMENT 1N TAKE-ueMEol-IANISMS FoR Looms.

Specification forming part of Letters Patent No. `168,228, datedSeptember 28, 1875 application led April 2, 1875.

To all whom it may concern Beit known that I, HUGOA CARSTAEDT, of thecity, county, andState of New York,"have inventeda certain new anduseful Improvement in Looms, of which the following'is a specification:

width against the strain of the take-up, but a special retaining deviceis used. Such retain- 'ing device I have described in my Patent No.

88,365, dated .March 30, 1869. It consists in a stationary bar furnishedwith retaining-needles. This answers very well in most cases,

but in order to retain the fabric safely the nee.

dles must be made considerably longer than would be required by thethickness of the fab-` ric, and they also must be made pretty thick,that they may not break off, and thereby injure fine fabrics.Furthermore, in order to be able to draw the fabric easily over theneedles in one direction, and to arrest its motion in the oppositedirection, said needles have to be inclined, and as the fabric passesdown over them it slips back for the distance of the in- My presentimprovement consists in combinin g, with the retaining-needles, alifting device, which serves to raise the fabric out of the needlesduring the time the lling-thread is beaten up, and While the fabric isprevented bythe reed from receding and the take-up is acting on it. Withthe lifter and the needles is combined a depresser, both the lifter andthe depresser being actuated by a cam mounted on the crank-shaft andacting independent of the reed, so that the operations of lifting and ofdepressing the fabric can be adjusted in accordance with the motions o fthe reed. rEhe cam which actuates the lifter and depresser is providedwith a segmental guard, so that the lifter and depresser can be made toact at alternate picks.

In the drawing, the letters a, a designate the take-,up rollers, whichmay be of any'desired construction, yand operated in any desired man-Aner. The fabric in its passage to the take-up rollers passes between twoblades, b b', which are just far enough apart to allow the cloth to passfreely. Close in front of the blades b b' is a stationary bar, c, inwhich are secured the retaining-needles d. The blades b b are secured tothe arms e of bell-crank levers e e', which are mounted on the end of arock-shaft,

b b to rise, so as to lift the fabric out ofthe needles d. 'As soon asthe nose nihas passed the hook p the rod Z is released, and the bladesbbsink down by their own weight, which may be assisted by a suitablespring, so that the upper blade b depresses the fabric into the needles.The whole amount of motion required by the blades b b in order toaccomplish the operations of lifting and depressing is not more thanabout one-sixteenth of aninch, and if the arms e of the bell-cranklevers 'e c' are made considerably longer than the arms e', the nose ncan be made quite small, so that the operation of lifting the fabric outof the needles is accomplished instantaneously. The nose u may be soshaped that the blades b b remain in their elevated position for anydesired length of time,

and they are raised once for every revolutionv of the crank-shaft, theirmotion being so timed that it takes place at the moment when the reedstrikes the filling-thread last put in, and when the take-'upreceivesits motion. At the inside of the disk g is a segmental guard, r,extending about half-way round,`a,nd the second or inner tine of theforked rod l is provided with a hook, q. When it is desired to throw thelifter and depresser out of operation during alternate strokes of thelay--as, for instance, in weaving the double parts or pockets -for thewhalebones in corsets-the rod l is raised by a connection with thejacquard, and

by Letters Patent, is-

1. The combination, With the take-up of a' loom, and with theretaining-needles d, of a lifting device, constructed substantially inthe manner described, whereby the fabric is raised outof the needlesduring the time the fillingthread is beaten up, and While the take-up isacting on it.

2. The combination, with the take-up of a loom, with theretaining-needles d and lifter b, of a depresser, b', both the lifterand depresser being actuated by a cam Which acts independently of thereed, substantially as set forth.

3. The combination of the cam-disk g and segmental guard o with theforked rod l, bellcrank levers e e', blades b b', and take-up rollers ala', all constructed and operating substantially as and for the purposeshown and described.

In testimony that I claim the foregoing I have hereunto set my hand andseal this 24th day of March, 1875. I

HUGO GARSTAEDT.

Witnesses:

VW. HAUFF,

E. F. KASTENHUBER.

